package com.hmdp.utils;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author ZCF
 */
public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
      //判断是否需要拦截（判断是否有用户）
        if (UserHolder.getUser()==null){
            response.setStatus(401);
            return false;
        }
        return true;
    }

}
